22009668 has 12 divisors (see below), whose sum is σ = 51355920. Its totient is φ = 7336552.

The previous prime is 22009649. The next prime is 22009699. The reversal of 22009668 is 86690022.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917058 + ... + 917081.

It is an arithmetic number, because the mean of its divisors is an integer number (4279660).

Almost surely, 2^22009668 is an apocalyptic number.

It is an amenable number.

22009668 is an abundant number, since it is smaller than the sum of its proper divisors (29346252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22009668 is a wasteful number, since it uses less digits than its factorization.

22009668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834146 (or 1834144 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 22009668 is about 4691.4462588844. The cubic root of 22009668 is about 280.2449726851.

The spelling of 22009668 in words is "twenty-two million, nine thousand, six hundred sixty-eight".